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P3P - Wikipedia

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class="vector-toc-numb">5</span> <span>Alternatives</span> </div> </a> <ul id="toc-Alternatives-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon 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Available in 10 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-10" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">10 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A8%D9%8A_3_%D8%A8%D9%8A" title="بي 3 بي – Arabic" lang="ar" hreflang="ar" data-title="بي 3 بي" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Platform_for_Privacy_Preferences_Project" title="Platform for Privacy Preferences Project – German" lang="de" hreflang="de" data-title="Platform for Privacy Preferences Project" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/P3P" title="P3P – Spanish" lang="es" hreflang="es" data-title="P3P" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Platform_for_Privacy_Preferences" title="Platform for Privacy Preferences – French" lang="fr" hreflang="fr" data-title="Platform for Privacy Preferences" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/P3P" title="P3P – Korean" lang="ko" hreflang="ko" data-title="P3P" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/P3P" title="P3P – Italian" lang="it" hreflang="it" data-title="P3P" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/P3P" title="P3P – Polish" lang="pl" hreflang="pl" data-title="P3P" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/P3P" title="P3P – Russian" lang="ru" hreflang="ru" data-title="P3P" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/P3P" title="P3P – Turkish" lang="tr" hreflang="tr" data-title="P3P" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E9%9A%B1%E7%A7%81%E6%AC%8A%E5%81%8F%E5%A5%BD%E5%B9%B3%E5%8F%B0" title="隱私權偏好平台 – Chinese" lang="zh" hreflang="zh" data-title="隱私權偏好平台" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q674312#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/P3P" title="View the content page [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:P3P" rel="discussion" title="Discuss improvements to the content page [t]" accesskey="t"><span>Talk</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" 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class="selected vector-tab-noicon mw-list-item"><a href="/wiki/P3P"><span>Read</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=P3P&amp;action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=P3P&amp;action=history" title="Past revisions of this page [h]" accesskey="h"><span>View history</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Tools" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button 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data-event-name="pinnable-header.vector-page-tools.unpin">hide</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/P3P"><span>Read</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=P3P&amp;action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=P3P&amp;action=history"><span>View history</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/P3P" title="List of all English Wikipedia pages containing links to this page [j]" accesskey="j"><span>What links here</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:RecentChangesLinked/P3P" rel="nofollow" title="Recent changes in pages linked from this page [k]" accesskey="k"><span>Related changes</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_Upload_Wizard" title="Upload files [u]" accesskey="u"><span>Upload file</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q"><span>Special pages</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=P3P&amp;oldid=1245393057" title="Permanent link to this revision of this page"><span>Permanent link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=P3P&amp;action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:CiteThisPage&amp;page=P3P&amp;id=1245393057&amp;wpFormIdentifier=titleform" title="Information on how to cite this page"><span>Cite this page</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&amp;url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FP3P"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&amp;url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FP3P"><span>Download QR code</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Print/export </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&amp;page=P3P&amp;action=show-download-screen" title="Download this page as a PDF file"><span>Download as PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=P3P&amp;printable=yes" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> In other projects </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q674312" title="Structured data on this page hosted by Wikidata [g]" accesskey="g"><span>Wikidata item</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Platform for website privacy preferences</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">For the PlayStation Portable video game, see <a href="/wiki/Persona_3_Portable" class="mw-redirect" title="Persona 3 Portable">Persona 3 Portable</a>.</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox hproduct"><caption class="infobox-title fn">P3P</caption><tbody><tr><td colspan="2" class="infobox-subheader">Platform for Privacy Preferences</td></tr><tr><th scope="row" class="infobox-label">Abbreviation</th><td class="infobox-data">P3P</td></tr><tr><th scope="row" class="infobox-label">Native name</th><td class="infobox-data"><div class="nickname" lang="en">Platform for Privacy Preferences</div></td></tr><tr><th scope="row" class="infobox-label">Status</th><td class="infobox-data">Retired</td></tr><tr><th scope="row" class="infobox-label">First published</th><td class="infobox-data">16&#160;April&#160;2002<span style="display:none">&#160;(<span class="bday dtstart published updated itvstart">2002-04-16</span>)</span><sup id="cite_ref-w3c-history_1-0" class="reference"><a href="#cite_note-w3c-history-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup><sup id="cite_ref-w3c-page_2-0" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Latest version</th><td class="infobox-data">1.1 <sup id="cite_ref-w3c-page_2-1" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Committee</th><td class="infobox-data">P3P Specification Working Group<sup id="cite_ref-w3c-page_2-2" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Editors</th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"> <ul><li>Rigo Wenning<sup id="cite_ref-w3c-page_2-3" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li> <li>Matthias Schunter<sup id="cite_ref-w3c-page_2-4" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li></ul> </div></td></tr><tr><th scope="row" class="infobox-label">Authors</th><td class="infobox-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"> <ul><li><a href="/wiki/Lorrie_Cranor" title="Lorrie Cranor">Lorrie Cranor</a><sup id="cite_ref-w3c-page_2-5" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li> <li>Brooks Dobbs<sup id="cite_ref-w3c-page_2-6" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li> <li>Serge Egelman<sup id="cite_ref-w3c-page_2-7" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li> <li>Giles Hogben<sup id="cite_ref-w3c-page_2-8" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li> <li>Jack Humphrey<sup id="cite_ref-w3c-page_2-9" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li> <li>Marc Langheinrich<sup id="cite_ref-w3c-page_2-10" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li> <li><a href="/wiki/Massimo_Marchiori" title="Massimo Marchiori">Massimo Marchiori</a><sup id="cite_ref-w3c-page_2-11" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li> <li>Martin Presler-Marshall<sup id="cite_ref-w3c-page_2-12" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li> <li><a href="/wiki/Joseph_M._Reagle_Jr." title="Joseph M. Reagle Jr.">Joseph Reagle</a><sup id="cite_ref-w3c-page_2-13" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li> <li>Matthias Schunter<sup id="cite_ref-w3c-page_2-14" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li> <li>David A. Stampley<sup id="cite_ref-w3c-page_2-15" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li> <li>Rigo Wenning<sup id="cite_ref-w3c-page_2-16" class="reference"><a href="#cite_note-w3c-page-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup></li></ul> </div></td></tr><tr><th scope="row" class="infobox-label">Base standards</th><td class="infobox-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"> <ul><li><a href="/wiki/HTTP" title="HTTP">HTTP</a></li> <li><a href="/wiki/XML" title="XML">XML</a></li></ul> </div></td></tr><tr><th scope="row" class="infobox-label">Website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="https://www.w3.org/TR/P3P11/">www<wbr />.w3<wbr />.org<wbr />/TR<wbr />/P3P11<wbr />/</a></span></td></tr></tbody></table> <p>The <b>Platform for Privacy Preferences Project</b> (<b>P3P</b>) is an obsolete <a href="/wiki/Protocol_(computing)" class="mw-redirect" title="Protocol (computing)">protocol</a> allowing <a href="/wiki/Website" title="Website">websites</a> to declare their intended use of information they collect about <a href="/wiki/Web_browser" title="Web browser">web browser</a> users. Designed to give users more control of their <a href="/wiki/Personal_information" class="mw-redirect" title="Personal information">personal information</a> when browsing, P3P was developed by the <a href="/wiki/World_Wide_Web_Consortium" title="World Wide Web Consortium">World Wide Web Consortium</a> (W3C) and officially recommended on April 16, 2002. Development ceased shortly thereafter and there have been very few implementations of P3P. <a href="/wiki/Internet_Explorer" title="Internet Explorer">Internet Explorer</a> and <a href="/wiki/Microsoft_Edge" title="Microsoft Edge">Microsoft Edge</a> were the only major browsers to support P3P. <a href="/wiki/Microsoft" title="Microsoft">Microsoft</a> has ended support from <a href="/wiki/Windows_10" title="Windows 10">Windows 10</a> onwards. Internet Explorer and Edge on Windows 10 no longer support P3P as of 2016.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> W3C officially obsoleted P3P on 2018-08-30.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> The president of <a href="/wiki/TRUSTe" class="mw-redirect" title="TRUSTe">TRUSTe</a> has stated that P3P has not been implemented widely due to the difficulty and lack of value.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Purpose">Purpose</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=P3P&amp;action=edit&amp;section=1" title="Edit section: Purpose"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>As the <a href="/wiki/World_Wide_Web" title="World Wide Web">World Wide Web</a> became a genuine medium in which to sell products and services, <a href="/wiki/Electronic_commerce" class="mw-redirect" title="Electronic commerce">electronic commerce</a> websites tried to collect more information about the people who purchased their merchandise. Some companies used controversial practices such as tracker <a href="/wiki/HTTP_cookie" title="HTTP cookie">cookies</a> to ascertain the users' <a href="/wiki/Demographic_profile" title="Demographic profile">demographic</a> information and buying habits, using this information to provide specifically targeted advertisements. Users who saw this as an invasion of <a href="/wiki/Privacy" title="Privacy">privacy</a> would sometimes turn off HTTP cookies or use <a href="/wiki/Anonymous_proxy_server" class="mw-redirect" title="Anonymous proxy server">proxy servers</a> to keep their personal information secure. P3P was designed to give users a more precise control of the kind of information that they allow to release. According to the W3C, the main goal of P3P "is to increase user trust and confidence in the Web through technical empowerment".<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> </p><p>P3P is a machine-readable language that helps to express a website’s data management practices. P3P manages information through privacy policies. When a website used P3P, they set up a set of policies that allows them to state their intended uses of personal information that may be gathered from their site visitors. When a user decided to use P3P, they set their own set of policies and state what personal information they will allow to be seen by the sites that they visit. Then when a user visited a site, P3P will compare what personal information the user is willing to release, and what information the server wants to get – if the two do not match, P3P would inform the user and ask if he/she is willing to proceed to the site, and risk giving up more personal information.<sup id="cite_ref-p3ptoolbox2_7-0" class="reference"><a href="#cite_note-p3ptoolbox2-7"><span class="cite-bracket">&#91;</span>7<span class="cite-bracket">&#93;</span></a></sup> As an example, a user may store in the browser preferences that information about their browsing habits should not be collected. If the policy of a Website stated that a cookie is used for this purpose, the browser would automatically reject the cookie. The main content of a privacy policy is the following: </p> <ul><li>which information the server stores: <ul><li>which kind of information is collected (identifying or not);</li> <li>which particular information is collected (<a href="/wiki/IP_address" title="IP address">IP address</a>, <a href="/wiki/Email_address" title="Email address">email address</a>, name, etc.);</li></ul></li> <li>use of the collected information: <ul><li>how this information is used (for regular navigation, tracking, personalization, telemarketing, etc.);</li> <li>who will receive this information (only the current company, third party, etc.);</li></ul></li> <li>permanence and visibility: <ul><li>how long information is stored;</li> <li>whether and how the user can access the stored information (read-only, optin, optout).</li></ul></li></ul> <p>The privacy policy can be retrieved as an <a href="/wiki/XML" title="XML">XML</a> file or can be included, in compact form, in the <a href="/wiki/HTTP" title="HTTP">HTTP</a> header. The location of the XML policy file that applies to a given document can be: </p> <ol><li>specified in the <a href="/wiki/HTTP" title="HTTP">HTTP</a> header of the document</li> <li>specified in the <a href="/wiki/HTML" title="HTML">HTML</a> head of the document</li> <li>if none of the above is specified, the <i>well-known location</i> <code>/w3c/p3p.xml</code> is used (for a similar location compare <code><a href="/wiki/Favicon" title="Favicon">/favicon.ico</a></code>)</li></ol> <p>P3P allows to specify a <code>max-age</code> for caching. A dummy <code>/w3c/p3p.xml</code> file could use this feature: </p> <div class="mw-highlight mw-highlight-lang-xml mw-content-ltr" dir="ltr"><pre><span></span><span class="nt">&lt;META</span><span class="w"> </span><span class="na">xmlns=</span><span class="s">&quot;http://www.w3.org/2002/01/P3Pv1&quot;</span><span class="nt">&gt;</span> <span class="w"> </span><span class="nt">&lt;POLICY-REFERENCES&gt;</span> <span class="w"> </span><span class="nt">&lt;EXPIRY</span><span class="w"> </span><span class="na">max-age=</span><span class="s">&quot;10000000&quot;</span><span class="nt">/&gt;</span><span class="cm">&lt;!-- about four months --&gt;</span> <span class="w"> </span><span class="nt">&lt;/POLICY-REFERENCES&gt;</span> <span class="nt">&lt;/META&gt;</span> </pre></div> <div class="mw-heading mw-heading2"><h2 id="User_agent_support">User agent support</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=P3P&amp;action=edit&amp;section=2" title="Edit section: User agent support"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:IE_P3P_Policy.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/en/thumb/2/28/IE_P3P_Policy.png/220px-IE_P3P_Policy.png" decoding="async" width="220" height="204" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/2/28/IE_P3P_Policy.png 1.5x" data-file-width="328" data-file-height="304" /></a><figcaption><a href="/wiki/Yahoo!" class="mw-redirect" title="Yahoo!">Yahoo!'s</a> P3P policy as viewed in <a href="/wiki/Internet_Explorer" title="Internet Explorer">Internet Explorer</a> 6.</figcaption></figure> <p><a href="/wiki/Microsoft" title="Microsoft">Microsoft</a>'s <a href="/wiki/Internet_Explorer" title="Internet Explorer">Internet Explorer</a> and <a href="/wiki/Microsoft_Edge" title="Microsoft Edge">Edge</a> were the only mainstream web browsers that supported P3P.<sup id="cite_ref-p3psupport_8-0" class="reference"><a href="#cite_note-p3psupport-8"><span class="cite-bracket">&#91;</span>8<span class="cite-bracket">&#93;</span></a></sup> Other browsers have not implemented it due to the perceived lack of value it provides. IE provides the ability to display P3P privacy policies, and compare the P3P policy with the browser's settings to decide whether or not to allow cookies from a particular site. However, the P3P functionality in Internet Explorer extends only to cookie blocking, and will not alert the user to an entire web site that violates active privacy preferences. Microsoft considers the feature deprecated in its browsers and totally removed P3P support on Windows 10.<sup id="cite_ref-p3psupport_8-1" class="reference"><a href="#cite_note-p3psupport-8"><span class="cite-bracket">&#91;</span>8<span class="cite-bracket">&#93;</span></a></sup> </p><p><a href="/wiki/Mozilla" title="Mozilla">Mozilla</a> supported some P3P features for a few years, but all P3P related source code was removed by 2007.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup> </p><p>The Privacy Finder<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">&#91;</span>10<span class="cite-bracket">&#93;</span></a></sup> service was also created by <a href="/wiki/Carnegie_Mellon_University" title="Carnegie Mellon University">Carnegie Mellon's</a> <a href="/wiki/CUPS_(CMU)" class="mw-redirect" title="CUPS (CMU)">Usable Privacy and Security Laboratory</a>. It is a publicly available "P3P-enabled search engine." A user can enter a search term along with their stated privacy preferences, and is then presented with a list of search results which are ordered based on whether the sites comply with their preferences. This works by crawling the web and maintaining a P3P cache for every site that ever appears in a search query. The <a href="/wiki/Cache_(computing)" title="Cache (computing)">cache</a> is updated every 24 hours so that every policy is guaranteed to be relatively up to date. The service also allows users to quickly determine why a site does not comply with their preferences, as well as allowing them to view a dynamically generated natural language privacy policy based on the P3P data. This is advantageous over simply reading the original natural language privacy policy on a web site because many privacy policies are written in legalese and are extremely convoluted. Additionally, in this case the user does not have to visit the web site to read its privacy policy. </p> <div class="mw-heading mw-heading2"><h2 id="Benefits">Benefits</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=P3P&amp;action=edit&amp;section=3" title="Edit section: Benefits"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>P3P allows browsers to understand their privacy policies in a simplified and organized manner rather than searching throughout the entire website. By setting privacy settings on a certain level, the user enables P3P to automatically block any cookies that the user might not want on their computer. Additionally, the W3C explains that P3P will allow browsers to transfer user data to services, ultimately promoting an online sharing community. </p><p>Additionally, the P3P Toolbox<sup id="cite_ref-p3ptoolbox1_11-0" class="reference"><a href="#cite_note-p3ptoolbox1-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> developed by the Internet Education Foundation recommends that anyone who is concerned about increasing their users’ trust and privacy should consider implementing P3P. The P3P toolbox site explains how companies have taken individuals data in order to promote new products or services. Furthermore, in recent years companies have taken individuals information and created profiles, which they then market without the individual's consent. Moreover, all this data is misused and we as consumers pay the price and become worrisome of issues such as: junk mail, <a href="/wiki/Identity_theft" title="Identity theft">identity theft</a> and forms of discrimination; therefore implementing P3P's protocol is good and beneficial for internet browsers. </p><p>Moreover, since there has been an increase of browsers there are more users at risk running into privacy problems. But the Internet Education Foundation points out that, “P3P has been developed to help steer the force of technology a step further toward automatic communication of data management practices and individual privacy preferences.”<sup id="cite_ref-p3ptoolbox1_11-1" class="reference"><a href="#cite_note-p3ptoolbox1-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Criticisms">Criticisms</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=P3P&amp;action=edit&amp;section=4" title="Edit section: Criticisms"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <a href="/wiki/Electronic_Privacy_Information_Center" title="Electronic Privacy Information Center">Electronic Privacy Information Center</a> (EPIC) has been critical of P3P and believes P3P makes it too difficult for users to protect their privacy.<sup id="cite_ref-epicreports_12-0" class="reference"><a href="#cite_note-epicreports-12"><span class="cite-bracket">&#91;</span>12<span class="cite-bracket">&#93;</span></a></sup> In 2002 it assessed P3P and referred to the technology as a "Pretty Poor Policy".<sup id="cite_ref-epicreports_12-1" class="reference"><a href="#cite_note-epicreports-12"><span class="cite-bracket">&#91;</span>12<span class="cite-bracket">&#93;</span></a></sup> According to EPIC, some P3P software is too complex and difficult for the average person to understand, and many Internet users are unfamiliar with how to use the default P3P software on their computers or how to install additional P3P software. Another concern is that websites are not obligated to use P3P, and neither are Internet users. Moreover, the EPIC website claims that P3Ps protocol would become burdensome for the browser and not as beneficial or efficient as it was intended to be. </p><p>A key problem that occurs with the use of P3P is that there is a lack of enforcement. Thus, promises made to users of P3P can go unfulfilled. Though by using P3P a company/website makes a promise of privacy and of the use of gathered data to the site’s users, there are no real legal ramifications if the company decides to use the information for other functions. Currently, there are no actual laws that have been passed by the <a href="/wiki/United_States" title="United States">United States</a> about data protection. Though, ideally, companies should be honest as to their use of customers' personal information, there is no binding reason that the company must actually adhere to the rules it says it will comply by. Though using P3P technically qualifies as a contract, the lack of federal regulation downplays the need for companies to abide.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">&#91;</span>13<span class="cite-bracket">&#93;</span></a></sup> </p><p>The agreement to use P3P not only puts in place unenforceable promises, but it also prolongs the adoption of federal laws that would actually inhibit the access and ability to use private information. If the government were to step in and attempt to protect Internet users with federal laws on what information can be accessed, and specific regulations on how user information can be used, companies would not maintain the leeway they do now to use information as they please, despite what they may actually tell users. In 2002, then EPIC employee Chris Hoofnagle argued that P3P was displacing chances for government regulation of privacy.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">&#91;</span>14<span class="cite-bracket">&#93;</span></a></sup> </p><p>Critics of P3P also argue that non-compliant sites are excluded. According to a study done by CyLab Privacy Interest Group at <a href="/wiki/Carnegie_Mellon_University" title="Carnegie Mellon University">Carnegie Mellon University</a><sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">&#91;</span>15<span class="cite-bracket">&#93;</span></a></sup> only 15% of the top 5,000 websites incorporate P3P. Therefore, many sites that do not include the code but do practice high privacy standards will not be accessible to users who use P3P as their only online privacy guide. </p><p>EPIC also talks about how the development and implementation of P3P can cause a monopoly of private information. Since it tends to be only major companies who implement P3P on their websites, only these major companies are tending to then gather this information seeing as only their privacy policies can compare to privacy preferences of users. The EPIC website says, "The incredible complexity of P3P, combined with the way that popular browsers are likely to implement the protocol would seem to preclude it as a privacy-protective technology," EPIC continues on to state, "Rather, P3P may actually strengthen the monopoly position over personal information that U.S. data marketers now enjoy."<sup id="cite_ref-epicreports_12-2" class="reference"><a href="#cite_note-epicreports-12"><span class="cite-bracket">&#91;</span>12<span class="cite-bracket">&#93;</span></a></sup> </p><p>The failure for its immediate adoption can be related to the idea of it being a notice and choice approach that does not comply with the Fair Information Practices. According to the Chairman of the FTC,<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">&#91;</span>16<span class="cite-bracket">&#93;</span></a></sup> privacy laws are key in today’s society in order to protect the consumer from providing too much personal information for others’ benefit. Some believe that there should be a limit to the collection and use of the consumer’s personal data online. Currently, sites are not required under any United States laws to comply with the privacy policies they publish, therefore P3P causes some controversy with consumers who are concerned about the release of their personal information and are only able to rely on P3P’s protocol to protect their privacy. </p><p>Michael Kaply from <a href="/wiki/IBM" title="IBM">IBM</a> is reported saying the following when the <a href="/wiki/Mozilla_Foundation" title="Mozilla Foundation">Mozilla Foundation</a> was considering the removal of P3P support from their browser-line in 2004:<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">&#91;</span>17<span class="cite-bracket">&#93;</span></a></sup> </p> <blockquote> <p>Ah the memories. </p><p>We (IBM) wrote the original P3P implementation and then <a href="/wiki/Netscape" title="Netscape">Netscape</a> proceeded to write their own. So both our companies wasted immense amounts of time that everyone thought was a crappy proposal to begin with. </p><p>Remove it. </p> </blockquote> <p>Live Leer, a PR manager for <a href="/wiki/Opera_Software" class="mw-redirect" title="Opera Software">Opera Software</a>, explained in 2001 the deliberate lack of P3P support in their browser:<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">&#91;</span>18<span class="cite-bracket">&#93;</span></a></sup> </p> <blockquote> <p>At the moment, we aren't sure whether P3P is the best solution. P3P is among the specifications we are considering for support in the future. There have been some issues with how well P3P will protect privacy, and for that reason we have decided to wait until these are resolved. </p> </blockquote> <div class="mw-heading mw-heading2"><h2 id="Alternatives">Alternatives</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=P3P&amp;action=edit&amp;section=5" title="Edit section: Alternatives"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>P3P user agents are not the only option available for Internet users that want to ensure their <a href="/wiki/Internet_privacy" title="Internet privacy">privacy</a>. Several of the main alternatives to P3P include using web browsers' <a href="/wiki/Privacy_mode" class="mw-redirect" title="Privacy mode">privacy mode</a>, <a href="/wiki/Anonymous_remailer" title="Anonymous remailer">anonymous e-mailers</a> and <a href="/wiki/Anonymizer" class="mw-redirect" title="Anonymizer">anonymous proxy servers</a>. </p><p>The main alternative to P3P may not be these technologies, but instead stronger laws to regulate what kind of information from Internet users can be collected and retained by websites. For example, in Europe, the <a href="/wiki/General_Data_Protection_Regulation" title="General Data Protection Regulation">General Data Protection Regulation</a> provides individuals with a certain set of principles about how personal information is collected and the person's rights to protecting their personal data.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">&#91;</span>19<span class="cite-bracket">&#93;</span></a></sup> The act allows individuals to control the type of information that is being collected from them. Various principles are included within the act, such as the rule that individual has the right to retrieve the data collected about them at any time under certain conditions. Moreover, the individual's personal information cannot be kept longer than necessary, and not be used for purposes other than those agreed upon to begin with. </p><p>Currently, the United States has no federal law protecting the privacy of personal information shared online. However, there are some sectoral laws at the federal and state level that offer some protection for certain types of information collected about individuals.<sup id="cite_ref-cpglaw_20-0" class="reference"><a href="#cite_note-cpglaw-20"><span class="cite-bracket">&#91;</span>20<span class="cite-bracket">&#93;</span></a></sup> For example, the <a href="/wiki/Fair_Credit_Reporting_Act" title="Fair Credit Reporting Act">Fair Credit Reporting Act</a> (FCRA) of 1970 makes it legal for consumer reporting agencies to disclose personal information only under three specified circumstances: credit, employment or insurance evaluation; government grant or license; or a “legitimate business need” that involves the consumer. A list of other sectoral privacy laws in the United States can be viewed at the Consumer Privacy Guide's website.<sup id="cite_ref-cpglaw_20-1" class="reference"><a href="#cite_note-cpglaw-20"><span class="cite-bracket">&#91;</span>20<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=P3P&amp;action=edit&amp;section=6" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Internet_privacy" title="Internet privacy">Internet privacy</a></li> <li><a href="/wiki/Identity_management" class="mw-redirect" title="Identity management">Identity management</a></li> <li><a href="/wiki/Privacy_policy" title="Privacy policy">Privacy policy</a></li> <li><a href="/wiki/Do_Not_Track" title="Do Not Track">Do Not Track</a>, a formerly official HTTP header allowing users to opt out of tracking</li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=P3P&amp;action=edit&amp;section=7" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width reflist-columns-2"> <ol class="references"> <li id="cite_note-w3c-history-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-w3c-history_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.w3.org/standards/history/P3P11">"The Platform for Privacy Preferences 1.1 (P3P1.1) Specification Publication History - W3C"</a>. <i>W3C</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2021-04-04</span></span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=W3C&amp;rft.atitle=The+Platform+for+Privacy+Preferences+1.1+%28P3P1.1%29+Specification+Publication+History+-+W3C&amp;rft_id=https%3A%2F%2Fwww.w3.org%2Fstandards%2Fhistory%2FP3P11&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> <li id="cite_note-w3c-page-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-w3c-page_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-w3c-page_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-w3c-page_2-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-w3c-page_2-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-w3c-page_2-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-w3c-page_2-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-w3c-page_2-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-w3c-page_2-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-w3c-page_2-8"><sup><i><b>i</b></i></sup></a> <a href="#cite_ref-w3c-page_2-9"><sup><i><b>j</b></i></sup></a> <a href="#cite_ref-w3c-page_2-10"><sup><i><b>k</b></i></sup></a> <a href="#cite_ref-w3c-page_2-11"><sup><i><b>l</b></i></sup></a> <a href="#cite_ref-w3c-page_2-12"><sup><i><b>m</b></i></sup></a> <a href="#cite_ref-w3c-page_2-13"><sup><i><b>n</b></i></sup></a> <a href="#cite_ref-w3c-page_2-14"><sup><i><b>o</b></i></sup></a> <a href="#cite_ref-w3c-page_2-15"><sup><i><b>p</b></i></sup></a> <a href="#cite_ref-w3c-page_2-16"><sup><i><b>q</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCranorDobbsEgelmanHogben" class="citation web cs1">Cranor, Lorrie; Dobbs, Brooks; Egelman, Serge; Hogben, Giles; Humphrey, Jack; Langheinrich, Marc; Marchiori, Massimo; Reagle, Joseph; Schunter, Matthias; Stampley, David A.; Wenning, Rigo. Wenning, Rigo; Matthias, Schunter (eds.). <a rel="nofollow" class="external text" href="https://www.w3.org/TR/P3P11/">"The Platform for Privacy Preferences 1.1 (P3P1.1) Specification"</a><span class="reference-accessdate">. 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Retrieved <span class="nowrap">8 July</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=Microsoft+Docs&amp;rft.atitle=P3P+is+no+longer+supported&amp;rft.date=2016-12-15&amp;rft_id=https%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fprevious-versions%2Fwindows%2Finternet-explorer%2Fie-developer%2Fcompatibility%2Fmt146424%28v%3Dvs.85%29&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.w3.org/TR/2018/OBSL-P3P-20180830/">"The Platform for Privacy Preferences 1.0 (P3P1.0) Specification: W3C Recommendation 16 April 2002, obsoleted 30 August 2018"</a>. 2018-08-30<span class="reference-accessdate">. Retrieved <span class="nowrap">2024-09-12</span></span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=The+Platform+for+Privacy+Preferences+1.0+%28P3P1.0%29+Specification%3A+W3C+Recommendation+16+April+2002%2C+obsoleted+30+August+2018&amp;rft.date=2018-08-30&amp;rft_id=https%3A%2F%2Fwww.w3.org%2FTR%2F2018%2FOBSL-P3P-20180830%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFRichmond2010" class="citation news cs1">Richmond, Riva (17 September 2010). <a rel="nofollow" class="external text" href="https://bits.blogs.nytimes.com/2010/09/17/a-loophole-big-enough-for-a-cookie-to-fit-through/">"A Loophole Big Enough for a Cookie to Fit Through"</a>. <i>The New York Times: Bits</i><span class="reference-accessdate">. Retrieved <span class="nowrap">8 July</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=The+New+York+Times%3A+Bits&amp;rft.atitle=A+Loophole+Big+Enough+for+a+Cookie+to+Fit+Through&amp;rft.date=2010-09-17&amp;rft.aulast=Richmond&amp;rft.aufirst=Riva&amp;rft_id=https%3A%2F%2Fbits.blogs.nytimes.com%2F2010%2F09%2F17%2Fa-loophole-big-enough-for-a-cookie-to-fit-through%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1 cs1-prop-foreign-lang-source"><a rel="nofollow" class="external text" href="http://www.p3ptoolbox.org/author/blogadmin/">"Michael Young – Binäre Optionen – Tipps und Tricks – p3ptoolbox.org"</a>. <i>www.p3ptoolbox.org</i> (in German).</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=www.p3ptoolbox.org&amp;rft.atitle=Michael+Young+%E2%80%93+Bin%C3%A4re+Optionen+%E2%80%93+Tipps+und+Tricks+%E2%80%93+p3ptoolbox.org&amp;rft_id=http%3A%2F%2Fwww.p3ptoolbox.org%2Fauthor%2Fblogadmin%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> <li id="cite_note-p3ptoolbox2-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-p3ptoolbox2_7-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20020612084749/http://www.p3ptoolbox.org/guide/section2.shtml">"Section 2 What is P3P and How Does it Work?"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.p3ptoolbox.org/guide/section2.shtml">the original</a> on 2002-06-12.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Section+2+What+is+P3P+and+How+Does+it+Work%3F&amp;rft_id=http%3A%2F%2Fwww.p3ptoolbox.org%2Fguide%2Fsection2.shtml&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> <li id="cite_note-p3psupport-8"><span class="mw-cite-backlink">^ <a href="#cite_ref-p3psupport_8-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-p3psupport_8-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20180126012442/https://developer.microsoft.com/en-us/microsoft-edge/platform/status/platformforprivacypreferences10p3p10/">"Internet Explorer's and Edge's P3P Support"</a>. Archived from <a rel="nofollow" class="external text" href="https://developer.microsoft.com/en-us/microsoft-edge/platform/status/platformforprivacypreferences10p3p10/">the original</a> on 2018-01-26<span class="reference-accessdate">. Retrieved <span class="nowrap">2018-01-25</span></span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Internet+Explorer%27s+and+Edge%27s+P3P+Support&amp;rft_id=https%3A%2F%2Fdeveloper.microsoft.com%2Fen-us%2Fmicrosoft-edge%2Fplatform%2Fstatus%2Fplatformforprivacypreferences10p3p10%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://bugzilla.mozilla.org/show_bug.cgi?id=225287">Bug 225287 - Remove p3p from the default build</a></span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.privacyfinder.org/">www.privacyfinder.org</a></span> </li> <li id="cite_note-p3ptoolbox1-11"><span class="mw-cite-backlink">^ <a href="#cite_ref-p3ptoolbox1_11-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-p3ptoolbox1_11-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20020907163701/http://www.p3ptoolbox.com/guide/section1.shtml">"Section 1 Why Implement P3P?"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.p3ptoolbox.com/guide/section1.shtml">the original</a> on 2002-09-07.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Section+1+Why+Implement+P3P%3F&amp;rft_id=http%3A%2F%2Fwww.p3ptoolbox.com%2Fguide%2Fsection1.shtml&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> <li id="cite_note-epicreports-12"><span class="mw-cite-backlink">^ <a href="#cite_ref-epicreports_12-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-epicreports_12-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-epicreports_12-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://epic.org/reports/prettypoorprivacy.html">"Pretty Poor Privacy: An Assessment of P3P and Internet Privacy"</a>. Electronic Privacy Information Center. June 2000.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Pretty+Poor+Privacy%3A+An+Assessment+of+P3P+and+Internet+Privacy&amp;rft.pub=Electronic+Privacy+Information+Center&amp;rft.date=2000-06&amp;rft_id=https%3A%2F%2Fepic.org%2Freports%2Fprettypoorprivacy.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> <li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.kcoyle.net/p3p.html">"P3P: Pretty Poor Privacy? By Karen Coyle"</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=P3P%3A+Pretty+Poor+Privacy%3F+By+Karen+Coyle&amp;rft_id=http%3A%2F%2Fwww.kcoyle.net%2Fp3p.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://archive.today/20120707050136/http://articles.techrepublic.com.com/5100-10878-1059571.html">Tech Republic: Despite big-name support, new privacy standard slow to catch on</a>, June 10, 2002</span> </li> <li id="cite_note-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-15">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.chariotsfire.com/pub/cpig-jan2007.pdf">2006 Privacy Policy Trends Report</a></span> </li> <li id="cite_note-16"><span class="mw-cite-backlink"><b><a href="#cite_ref-16">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.ftc.gov/reports/privacy2000/privacy2000.pdf">Fair Information Practices In The Electronic Marketplace, 2000</a></span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-17">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://bugzilla.mozilla.org/show_bug.cgi?id=225287#c12">"225287 - Remove p3p from the default build"</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=225287+-+Remove+p3p+from+the+default+build&amp;rft_id=https%3A%2F%2Fbugzilla.mozilla.org%2Fshow_bug.cgi%3Fid%3D225287%23c12&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> <li id="cite_note-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-18">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.informationweek.com/story/IWK20010816S0004">"P3P: Protector of Consumers' Online Privacy"</a>. 17 August 2001.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=P3P%3A+Protector+of+Consumers%27+Online+Privacy&amp;rft.date=2001-08-17&amp;rft_id=http%3A%2F%2Fwww.informationweek.com%2Fstory%2FIWK20010816S0004&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> <li id="cite_note-19"><span class="mw-cite-backlink"><b><a href="#cite_ref-19">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://ec.europa.eu/info/law/law-topic/data-protection_en">"Data protection"</a>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=Data+protection&amp;rft_id=https%3A%2F%2Fec.europa.eu%2Finfo%2Flaw%2Flaw-topic%2Fdata-protection_en&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> <li id="cite_note-cpglaw-20"><span class="mw-cite-backlink">^ <a href="#cite_ref-cpglaw_20-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-cpglaw_20-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20020206070232/http://www.consumerprivacyguide.org/law/">"ConsumerPrivacyGuide.org &#124; Law Protection"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.consumerprivacyguide.org/law/">the original</a> on 2002-02-06<span class="reference-accessdate">. Retrieved <span class="nowrap">2008-03-08</span></span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=unknown&amp;rft.btitle=ConsumerPrivacyGuide.org+%26%23124%3B+Law+Protection&amp;rft_id=http%3A%2F%2Fwww.consumerprivacyguide.org%2Flaw%2F&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AP3P" class="Z3988"></span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=P3P&amp;action=edit&amp;section=8" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.w3.org/P3P/">W3C P3P site</a> <ul><li><a rel="nofollow" class="external text" href="http://www.w3.org/TR/P3P/">W3C P3P 1.0 Specification</a>, published as a Recommendation in 2002</li> <li><a rel="nofollow" class="external text" href="http://www.w3.org/TR/P3P11/">W3C P3P 1.1 Specification</a>, published as a Note in 2006</li></ul></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20081011192932/http://msdn2.microsoft.com/en-us/library/ms537343.aspx">P3P in Internet Explorer 6</a> (<a rel="nofollow" class="external text" href="https://web.archive.org/web/20140330033325/http://msdn.microsoft.com/en-us/library/ms537343.aspx">Archived version from March 2014</a>)</li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20071217115144/http://www.cdt.org/privacy/pet/p3pprivacy.shtml">Center for Democracy and Technology: P3P Privacy</a></li> <li><a rel="nofollow" class="external text" href="https://www.facebook.com/help/?page=219494461411349">Facebook's statement on P3P</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20220608050830/https://www.facebook.com/help/?page=219494461411349">Archived</a> 2022-06-08 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a></li> <li><a rel="nofollow" class="external text" href="https://support.google.com/accounts/bin/answer.py?hl=en&amp;answer=151657">Google's statement on P3P</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output 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<li><a href="/wiki/Canonical_XML" title="Canonical XML">Canonical XML</a></li> <li><a href="/wiki/Compound_Document_Format" title="Compound Document Format">CDF</a></li> <li><a href="/wiki/CSS" title="CSS">CSS</a> <ul><li><a href="/wiki/CSS_animations" title="CSS animations">Animations</a></li> <li><a href="/wiki/CSS_Flexible_Box_Layout" title="CSS Flexible Box Layout">Flexbox</a></li> <li><a href="/wiki/CSS_grid_layout" title="CSS grid layout">Grid</a></li></ul></li> <li><a href="/wiki/Document_Object_Model" title="Document Object Model">DOM</a></li> <li><a href="/wiki/Efficient_XML_Interchange" title="Efficient XML Interchange">EXI</a></li> <li><a href="/wiki/Emotion_Markup_Language" title="Emotion Markup Language">EmotionML</a></li> <li><a href="/wiki/W3C_Geolocation_API" title="W3C Geolocation API">Geolocation API</a></li> <li><a href="/wiki/HTML" title="HTML">HTML</a> <ul><li><a href="/wiki/HTML5" title="HTML5">HTML5</a></li></ul></li> <li><a href="/wiki/Indexed_Database_API" title="Indexed Database API">IndexedDB</a></li> <li><a href="/wiki/Internationalization_Tag_Set" title="Internationalization Tag Set">ITS</a></li> <li><a href="/wiki/JSON-LD" title="JSON-LD">JSON-LD</a></li> <li><a href="/wiki/Linked_Data_Notifications" title="Linked Data Notifications">Linked Data Notifications</a></li> <li><a href="/wiki/MathML" title="MathML">MathML</a></li> <li><a href="/wiki/Micropub_(protocol)" title="Micropub (protocol)">Micropub</a></li> <li><a href="/wiki/Web_Ontology_Language" title="Web Ontology Language">OWL</a></li> <li><a href="/wiki/Pronunciation_Lexicon_Specification" title="Pronunciation Lexicon Specification">PLS</a></li> <li><a href="/wiki/Resource_Description_Framework" title="Resource Description Framework">RDF</a> <ul><li><a href="/wiki/RDF_Schema" title="RDF Schema">Schema</a></li></ul></li> <li><a href="/wiki/Semantic_Interpretation_for_Speech_Recognition" title="Semantic Interpretation for Speech Recognition">SISR</a></li> <li><a href="/wiki/Simple_Knowledge_Organization_System" title="Simple Knowledge Organization System">SKOS</a></li> <li><a href="/wiki/Synchronized_Multimedia_Integration_Language" title="Synchronized Multimedia Integration Language">SMIL</a></li> <li><a href="/wiki/SOAP" title="SOAP">SOAP</a></li> <li><a href="/wiki/Speech_Recognition_Grammar_Specification" title="Speech Recognition Grammar Specification">SRGS</a></li> <li><a href="/wiki/Subresource_Integrity" title="Subresource Integrity">SRI</a></li> <li><a href="/wiki/Speech_Synthesis_Markup_Language" title="Speech Synthesis Markup Language">SSML</a></li> <li><a href="/wiki/Scalable_Vector_Graphics" class="mw-redirect" title="Scalable Vector Graphics">SVG</a> <ul><li><a href="/wiki/SVG_filter_effects" title="SVG filter effects">Filter Effects</a></li></ul></li> <li><a href="/wiki/SCXML" title="SCXML">SCXML</a></li> <li><a href="/wiki/SHACL" title="SHACL">SHACL</a></li> <li><a href="/wiki/SPARQL" title="SPARQL">SPARQL</a></li> <li><a href="/wiki/Timed_text" title="Timed text">Timed text</a></li> <li><a href="/wiki/VoiceXML" title="VoiceXML">VoiceXML</a></li> <li><a href="/wiki/WebAssembly" title="WebAssembly">WebAssembly</a></li> <li><a href="/wiki/Web_of_Things" title="Web of Things">WoT</a> <ul><li><a href="/wiki/Thing_Description" title="Thing Description">TD</a></li></ul></li> <li><a href="/wiki/Web_storage" title="Web storage">Web storage</a></li> <li><a href="/wiki/Web_Services_Description_Language" title="Web Services Description Language">WSDL</a></li> <li><a href="/wiki/Webmention" title="Webmention">Webmention</a></li> <li><a href="/wiki/WebSub" title="WebSub">WebSub</a></li> <li><a href="/wiki/WebVTT" title="WebVTT">WebVTT</a></li> <li><a href="/wiki/Web_Open_Font_Format" title="Web Open Font Format">WOFF</a></li> <li><a href="/wiki/XHTML" title="XHTML">XHTML</a> <ul><li><a href="/wiki/XHTML%2BRDFa" title="XHTML+RDFa">+RDFa</a></li></ul></li> <li><a href="/wiki/XML" title="XML">XML</a> <ul><li><a href="/wiki/XML_Base" title="XML Base">Base</a></li> <li><a href="/wiki/XML_Encryption" title="XML Encryption">Encryption</a></li> <li><a href="/wiki/XML_Events" title="XML Events">Events</a></li> <li><a href="/wiki/XML_Information_Set" title="XML Information Set">Information Set</a></li> <li><a href="/wiki/XML_namespace" title="XML namespace">Namespace</a></li> <li><a href="/wiki/XML_Schema_(W3C)" title="XML Schema (W3C)">Schema</a></li> <li><a href="/wiki/XML_Signature" title="XML Signature">Signature</a></li> <li><a href="/wiki/XForms" title="XForms">XForms</a></li> <li><a href="/wiki/XInclude" title="XInclude">XInclude</a></li> <li><a href="/wiki/XLink" title="XLink">XLink</a></li> <li><a href="/wiki/XML-binary_Optimized_Packaging" title="XML-binary Optimized Packaging">XOP</a></li> <li><a href="/wiki/XPath" title="XPath">XPath</a> <ul><li><a href="/wiki/XPath_2.0" title="XPath 2.0">2.0</a></li> <li><a href="/wiki/XPath_3" title="XPath 3">3.x</a></li></ul></li> <li><a href="/wiki/XPointer" title="XPointer">XPointer</a></li> <li><a href="/wiki/XProc" title="XProc">XProc</a></li> <li><a href="/wiki/XQuery" title="XQuery">XQuery</a></li> <li><a href="/wiki/XSL" title="XSL">XSL</a></li> <li><a href="/wiki/XSL_Formatting_Objects" title="XSL Formatting Objects">XSL-FO</a></li> <li><a href="/wiki/XSLT" title="XSLT">XSLT</a> <ul><li><a href="/wiki/XSLT_elements" title="XSLT elements">elements</a></li></ul></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Notes</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IndieAuth" title="IndieAuth">IndieAuth</a></li> <li><a href="/wiki/XAdES" title="XAdES">XAdES</a></li> <li><a href="/wiki/XBL" title="XBL">XBL</a></li> <li><a href="/wiki/XHTML%2BSMIL" title="XHTML+SMIL">XHTML+SMIL</a></li> <li><a href="/wiki/Extensible_User_Interface_Protocol" title="Extensible User Interface Protocol">XUP</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/World_Wide_Web_Consortium#Working_draft_(WD)" title="World Wide Web Consortium">Working drafts</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Call_Control_eXtensible_Markup_Language" title="Call Control eXtensible Markup Language">CCXML</a></li> <li><a href="/wiki/CURIE" title="CURIE">CURIE</a></li> <li><a href="/wiki/Encrypted_Media_Extensions" title="Encrypted Media Extensions">EME</a></li> <li><a href="/wiki/InkML" title="InkML">InkML</a></li> <li><a href="/wiki/Media_Source_Extensions" title="Media Source Extensions">MSE</a></li> <li><a href="/wiki/Rule_Interchange_Format" title="Rule Interchange Format">RIF</a></li> <li><a href="/wiki/SMIL_Timesheets" title="SMIL Timesheets">SMIL Timesheets</a></li> <li><a href="/wiki/SXBL" title="SXBL">sXBL</a></li> <li><a href="/wiki/WebGPU" title="WebGPU">WebGPU</a></li> <li><a href="/wiki/WebXR" title="WebXR">WebXR</a></li> <li><a href="/wiki/Extensible_Forms_Description_Language" title="Extensible Forms Description Language">XFDL</a></li> <li><a href="/wiki/XFrames" title="XFrames">XFrames</a></li> <li><a href="/wiki/XMLHttpRequest" title="XMLHttpRequest">XMLHttpRequest</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Guidelines</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Web_Content_Accessibility_Guidelines" title="Web Content Accessibility Guidelines">Web Content Accessibility Guidelines</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Initiative</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/W3C_Markup_Validation_Service" title="W3C Markup Validation Service">Markup Validation Service</a></li> <li><a href="/wiki/Web_Accessibility_Initiative" title="Web Accessibility Initiative">Web Accessibility Initiative</a></li> <li><a href="/wiki/Web_Components" title="Web Components">Web Components</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Deprecated</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/C-HTML" class="mw-redirect" title="C-HTML">C-HTML</a></li> <li><a href="/wiki/Handheld_Device_Markup_Language" title="Handheld Device Markup Language">HDML</a></li> <li><a href="/wiki/JavaScript_Style_Sheets" title="JavaScript Style Sheets">JSSS</a></li> <li><a href="/wiki/Precision_Graphics_Markup_Language" title="Precision Graphics Markup Language">PGML</a></li> <li><a href="/wiki/Vector_Markup_Language" title="Vector Markup Language">VML</a></li> <li><a href="/wiki/WebPlatform.org" title="WebPlatform.org">WebPlatform</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Obsoleted</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">P3P</a></li> <li><a href="/wiki/XHTML%2BMathML%2BSVG" title="XHTML+MathML+SVG">XHTML+MathML+SVG</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Organizations</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/World_Wide_Web_Foundation" title="World Wide Web Foundation">World Wide Web Foundation</a></li> <li><a href="/wiki/WHATWG" title="WHATWG">WHATWG</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Elected groups</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=W3C_Advisory_Board&amp;action=edit&amp;redlink=1" class="new" title="W3C Advisory Board (page does not exist)">AB</a></li> <li><a href="/w/index.php?title=W3C_Board&amp;action=edit&amp;redlink=1" class="new" title="W3C Board (page does not exist)">Board</a></li> <li><a href="/wiki/Technical_Architecture_Group" title="Technical Architecture Group">TAG</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Working groups</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CSS_Working_Group" title="CSS Working Group">CSS</a></li> <li><a href="/wiki/SVG_Working_Group" title="SVG Working Group">SVG</a></li> <li><a href="/wiki/WebAssembly" title="WebAssembly">WebAssembly</a></li> <li><a href="/wiki/Web_Authentication_Working_Group" title="Web Authentication Working Group">WebAuthn</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Community &amp; business groups</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Improving_Web_Advertising_Business_Group" title="Improving Web Advertising Business Group">Web Advertising BG</a></li> <li><a href="/wiki/WebAssembly" title="WebAssembly">WebAssembly</a> CG</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Closed groups</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/W3C_Device_Description_Working_Group" title="W3C Device Description Working Group">Device Description</a> (DDWG)</li> <li><a href="/wiki/HTML_Working_Group" title="HTML Working Group">HTML</a></li> <li><a href="/wiki/W3C_MMI" title="W3C MMI">Multimodal Interaction Activity</a> (MMI)</li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Software</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CERN_httpd" title="CERN httpd">CERN httpd</a></li> <li><a href="/wiki/Libwww" title="Libwww">Libwww</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Web_browser" title="Web browser">Browsers</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Line_Mode_Browser" title="Line Mode Browser">Line Mode</a> <span style="font-size:85%;">(1990–)</span></li> <li><a href="/wiki/Arena_(web_browser)" title="Arena (web browser)">Arena</a> <span style="font-size:85%;">(1993–98)</span></li> <li><a href="/wiki/Agora_(web_browser)" title="Agora (web browser)">Agora</a> <span style="font-size:85%;">(1994–97)</span></li> <li><a href="/wiki/Argo_(web_browser)" title="Argo (web browser)">Argo</a> <span style="font-size:85%;">(1994–97)</span></li> <li><a href="/wiki/Amaya_(web_editor)" title="Amaya (web editor)">Amaya</a> <span style="font-size:85%;">(browser/editor, 1996–2012)</span></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Conferences</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/International_World_Wide_Web_Conference" class="mw-redirect" title="International World Wide Web Conference">International World Wide Web Conference</a> (IW3C) <ul><li><a href="/wiki/International_World_Wide_Web_Conferences_Steering_Committee" class="mw-redirect" title="International World Wide Web Conferences Steering Committee">Steering Committee</a> (IW3C2)</li> <li><a href="/wiki/First_International_Conference_on_the_World-Wide_Web" title="First International Conference on the World-Wide Web">First conference</a> ("WWW1", 1994)</li></ul></li></ul> </div></td></tr></tbody></table></div> <!-- NewPP limit report Parsed by mw‐web.codfw.main‐f69cdc8f6‐828bf Cached time: 20241124012133 Cache expiry: 2592000 Reduced expiry: false Complications: [vary‐revision‐sha1, show‐toc] CPU time usage: 0.481 seconds Real time usage: 0.589 seconds Preprocessor visited node count: 1752/1000000 Post‐expand include size: 73690/2097152 bytes Template argument size: 3747/2097152 bytes Highest 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